According to a CNN source, Comey is expected to publicly testify before the Senate Intelligence Committee, which is investigating possible connections between the Trump campaign and Russian Federation during the election, as early as next week. The substance of his testimony is a source of much speculation and will surely be a pivotal moment in the course of the investigations into President Donald Trump's campaign's alleged connections to Russian Federation.

On Feb. 14, Trump allegedly asked Comey during a private meeting to cease an ongoing investigation into former White House national security adviser Michael Flynn, who had resigned a day prior.

Of course, it's impossible to say whether these sources are correct, or what Comey's testimony will actually be about. "He's happy to testify, and he's happy to cooperate."Another source also opened up to Politico about the case, confirming that Comey's testimony can come as early as next week".

The subpoenas sent to government agencies were related to Trump's complaints that Obama administration officials had asked, for political reasons, to be told the names of Trump associates documented in intelligence reports.

"I hope you can see your way clear to letting this go, to letting Flynn go", Trump said, according to a memo written by Comey, The Times reported.

Comey will nearly certainly not be able to discuss details of the ongoing investigation, which is now being led by a special counsel.

Comey reportedly wrote detailed memos about his conversations with President Trump. Warner said at the time that he wanted Comey to discuss, "some of the questions that have arisen since Director Comey was so suddenly dismissed by the President". "Russian officials must be laughing at the US & how a lame excuse for why the Dems lost the election has taken over the Fake News", Mr. Trump tweeted this morning, as White House officials once more jabbed at the news media for using anonymous sources.

"This Russia thing with Trump and Russia is a made-up story", Mr. Trump told NBC News. American intelligence officials have said that Moscow sought to impact the 2016 election.